CVE-2021-34770
Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers CAPWAP Remote Code Execution Vulnerability
At a glance
- Source
- NVD
- EPSS
- EPSS 2.96 % · percentile 87 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Analyzed
Description
A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9000 Family Wireless Controllers could allow an unauthenticated, remote attacker to execute arbitrary code with administrative privileges or cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a logic error that occurs during the validation of CAPWAP packets. An attacker could exploit this vulnerability by sending a crafted CAPWAP packet to an affected device. A successful exploit could allow the attacker to execute arbitrary code with administrative privileges or cause the affected device to crash and reload, resulting in a DoS condition.
Weaknesses (CWE)
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H | cisco |
| CVSS 3.1 | CRITICAL 10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H | NVD · psirt@cisco.com (Secondary) |
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | HIGH 9.0 | AV:N/AC:L/Au:S/C:C/I:C/A:C | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2021-21420
- GCVE · GCVE-0-2021-34770
CERT-FR advisories
- CERTFR-2021-AVI-728 — Multiples vulnérabilités dans les produits Cisco · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:cisco:ios_xe:-:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.15.1xbs:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.15.2xbs:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.6.4s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.10.1:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.10.1e:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.10.1s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.11.1:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.11.1a:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.11.1b:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.11.1c:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.11.2:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.12.1:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.12.1s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.12.1t:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.12.2s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.12.2t:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.12.3:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.12.3s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.12.4:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.12.4a:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:17.1.1:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:17.1.1s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:17.1.1t:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:17.1.2:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:17.1.3:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:17.2.1:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:17.2.1a:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:17.3.1:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Cisco · Cisco IOS XE Software | affected n/a |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |